tree f6f2ccb248977a1a5d8d3812e929a0acd9e6148e
parent 9c04f57cabbf736e91b831858d0eeecca703eabf
author Glenn Randers-Pehrson <glennrp at users.sourceforge.net> 1466379815 -0500
committer Glenn Randers-Pehrson <glennrp at users.sourceforge.net> 1466379815 -0500

[libpng16] Avoid filter-selection heuristic sum calculations in cases where

only one filter is a candidate for selection. This trades off code size (added
png_setup_*_row_only() functions) for speed.